The fact that the data is represented in graphical mode is more for a good visibility.
Once your box on the right channel, you can also check where to put it to cover the largest possible surface. You can make real time by measuring the signal between your box and your device.
The software has no other function but most important for me is still well set up my box and place the right place in my apartment.
Application to have in your virtual tool kit
An application translated into French would have been a (best of all), but not translation is not a problem because a lot of information are graphics.